The Petzval 58 Art Lens is a stunning reinvention of the legendary Petzval Lens, which was first conceived of in 1840. It is compatible with all Canon EF mounts and offers both photographers and filmmakers the chance to shoot truly unique images. Characteristic photos shot with the Petzval 58 Lens are recognizable for their sharpness and crispness in the center, strong color saturation, wonderful swirly bokeh effect, artful vignettes, and narrow depth of field. Because of the characteristic swirly bokeh effect that it produces, the Petzval 58 Lens is perfect for portraits where you want your subject to be the center of attention. It also utilizes a traditional Waterhouse aperture system with physical aperture rings that you insert into the lens.